$(document).ready(function(){
    $(".list-1").bind("click",function(){
        $(".list-1").css("backgroundPosition","-15px -63px");
        $(".list-2").css("backgroundPosition","48px -63px");
        $(".changelist").children().removeClass("list-2-v").addClass("list-1-o");
    });
    $(".list-2").bind("click",function(){
        $(".list-1").css("backgroundPosition","-15px -113px");
        $(".list-2").css("backgroundPosition","48px -113px");
        $(".changelist").children().removeClass("list-1-o").addClass("list-2-v");
    });
});